Fabricated structural member



July 6,1926.

' w. s. MccLlN'rlc FABRICATED STRUCTURAL MEMBER Filed June 2'?,` 1922'fof ,the flanges 12;

'Patented July 6,' 19.26.

`UNITED .STATES Y 1,591,858v PATENT OFFICE.

WILLIAM S. MOCLINTIC, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO JONES &

LAUGIAHLIN STEEL CORPORATION, OF PITTSBURGH, PENNSYLVANIA, -A CORPORA-TIOIjll OF PENNSYLVANIA FABRICATED STRUCTURAL MEMBER.

Application led'June 27, 1922. Serial No. 571,157.)

My invention aims to strengthen and improve rollti structural members ofopen web or trussed form, and to enable such members to be readily andcheaply fabricated and utilized for building and other purposes. V v iIn the accompanying drawings, wherein I haveshown'one embodiment of myin-V vention for purposes of illustration, Fig. 1 l0 is a side view of atrussed web I-beam such as is suitable for floor beams, roof trusses,bridge girders, and other, structural purposes; Fig. 2-,is an enlargedside view of one. end ofthe beam shown in Fig. 1; Fig.- 15 3 is across-section of the same on the line 3-3 in Fig. 2; andFig. 4 isa topview of one en'd portion of the same beam; Figs. '2,' 3 and 4 eing drawnto the same scale;

and F.ig.' 5 is a .perspective view of vasecuring clip. y

The invention may be applied to I-beams,

channels, Z.sections, Tfsect-ions, H-sections,

and other shapes withand without flanges, havin trussed'- or 'open Websformed in $5. tegra y withthe flanges or'continuous -marns. In theparticular embodiment selectedor illustration 'herein and shown inthed'rawings, referringparticularly to Fig. 1,

L the invention is'embodied in a trussed I-' Il) beam 11 having flanges12 connected by angularly disposed lattice or web members 13 formedintegrally with the flanges by any [suitable 'process of manufacture.*Pref-- l erabl each end of.. the beam is strength- I5 cned y securingto the flanges suitable shear plates 14,A disposed one. on each side ofthe web, although it is not'essential that shear plates -be secured onboth sidesA of the web.

.These sliea'aruplates` haveA flan es 15 which (0 fit against land aresecured to t e inner sides b The' preferred manner of securing theflanges 15and the flanges 12 "toeach ot erisbya series of clips 16having studs 1T tting through alining notches d5 18 inthe contactingflanges, as illustrated in Figs. 2, 3 and 4. and drawing the'memberssnug together. 'lhe clipsare preferablyfabricated with the studs 1'7straight, asshown in full lines in Fig. 5, and are bent under theflanges by a hammer or otherv suitable'means readily available at theplace of use.

. Theshear plates are preferably made of a lengthaboutequal to the depthof the l web, and the connecftlonsto the flanges -of the element, arespacedV to hold the shear plates and flanges 'securely against forcestending to distort the end portion of the fabricated structure in anyand every direction. A

- Fabricated structural members embodying my invention mayadvantageously be substituted for solid web members Wherever lightnessand strength are desirable'. buildings and other structures the openWebs permit pipes, wires, conduits and other accessories and structuralparts to be run through the beams where they are out of the way of othermembers-and within the minimum clearance limits. The shear plates notonly strengthen the ends of the vbeam or o t-her element to enable it tocarry its maximum load with safety, but enable con- "nections with otherportions of the structure as strong as. with solid webto be made beams.

If desirable, shear plates may be applied to beams and other elementsbetween their ends, and are advantageously used wherever there is apoint of support or connection with some other portion ofthe structurein which the'element is embodied.

In fabricating structural vmembers embodying my invention, itiscustomaryto roll the integral elements in continuous lengths suliicientfor several members, and

cut them in lengths to suit the particular .sire` 'to secure by-Letters'Patent is as follows:

1. A structural element comprising continuous side marginal angesconnectedv by' web members integral therewith together constituting]-wi'th 'supp ementary shear mem ers at spaced points, said shear membersbelng formed with end flanges and fitted between the anges on each sideof said elementand rigidly secured vthereto by means of chps embracingand gripping said `contiguous 'flanges at each margin Aof saidstructural elements.

a jointless truss,.and rovided 2. A structural elementA comprising conitinuous side margins connected by web members integral therewithtogether constituting a jointless truss, and provided with supplementaryshear members at spaced points, said shear members being bent alongtheir sides to form flanges and rigidly secured thereby to the said sidemargins by means of clips embracing said margins and flanges.

3. A structural element having parallel sides connected by an open webintegral therewith, said sides and web together con-Y stituting ajointless truss, and shear plates having edge holding means arranged inpairs on opposite sides of said web at spaced points to cover openingstherein, and rigidly secured to said sides by means of clips emingprovided with registering notches to receive and position said clips.

5. A -flanged rolled structural member having an open web of truss-likefrm connecting its flanges and alining notches in opposite flangesadapted to receive clips for securing stili'enin members thereto,stifteners having space notches corresponding to the notches in-saidflanges, and clips positioned in said notches for securing saidstifeners to said structural members.

6. In combination with a rolled flanged member having an open web andstiffeners adapted to fit between the flanges on opposite sides of saidweb, said flanges and Vstiffeners having alining notches in theiradjacent edges, and clips embracing said notched edges and having studsprojecting through said notches and bent under them.

In testimony whereof, I have signed my name to this specification.

WILLIAM S. MCCLINTIC.

